Chronic daily tension-type headaches affect approximately 3% of the population with women being twice as likely to suffer from them as men Tension headaches are the most common type of headache, they are experienced by most people during their lives and they are the ‘everyday’ headaches. Tension headaches used to be referred to as muscle contraction headaches or stress headaches, but generally these terms have gone out of usage. The National Health Service in the UK estimate that about half of adults experience tension-type headaches once or twice a month, with 1 in 3 get suffering up to...